President Barack Obama looks at a robot that plays soccer, built by a team from Blue Bell, Pa, as he tours the science projects on display in the State Dining Room of the White House. Obama hosted the White House Science Fair to showcase the winners of a broad range of science, technology, engineering and math (STEM) competitions

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President Barack Obama talks to students from Mulholland Middle School in California

…with Erika DeBenedictis, 18, a student at Albuquerque Academy in New Mexico